[. . . ] Push the hose onto the back of the flow control all the way past the barb and up to the threads and screw together. Slide extension nut and o-ring to the flow control and screw together. OPERATING INSTRUCTIONS: 1. Remove the auxiliary pump from the tank by turning counter clockwise. Determine the proper ratio of concentrated chemicals to water and pour enough chemical into the sprayer to yield the amount of spray solution desired. [. . . ] 11. Empty any remaining solution into a proper storage or disposal container. If the chemical is stored in the tank, it can clog the system as it dries and it can promote corrosion. After using water based products rinse thoroughly with water, being sure to flush out hose and flow control. After spraying solvent or oil based products, follow chemical manufacturers' recommended cleaning procedures. 13. To store the sprayer, hang the tank upside down with the pump removed and the flow control locked "on". MAINTENANCE AND DISASSEMBLY: To keep the pump working smoothly and efficiently, the plunger u-cup seal needs to be lubricated often. Disassemble pump, according to the instructions below for your model, and apply grease or petroleum jelly around the outside of the plunger cup. STRAIGHT NECK SPRAYER MODELS 2501, 2502, 2503: Place the pump assembly on the edge of the table as shown and pull with downward motion. To reassemble, insert the plunger assembly into the pump cylinder, resting the tank cap on top of the pump cylinder. Turn the assembly upside down and tap firmly on a hard surface to snap pump assembly back into place. FUNNEL TOP SPRAYER MODELS 2601, 2602, 2602I, 2603, 1602: Lay pump down on table. With flat blade screwdriver, push in on the tabs on each side of the pump and pry down. Pull up on the handle and the plunger assembly should come out of the pump cylinder. To reassemble, insert plunger assembly into cylinder and push the tabs back into place. !TROUBLESHOOTING: Always depressurize the sprayer, remove chemical solution, and clean the sprayer before making repairs. Replacement parts may be purchased at most RL FLOMASTER dealers, or they can be ordered from our Consumer Service Hotline at 1-800-253-4642. PROBLEM: Pump works hard or does not pressurize tank. CAUSE: Plunger cup or plunger o-ring either not lubricated or damaged. SOLUTION: Apply petroleum jelly around outside of plunger cup or plunger o-ring. [. . . ] This warranty does not apply to damage resulting from accident, misuse, neglect, alterations, operation not in accordance with instructions, commercial use, or normal wear of o-rings or seals. ANY IMPLIED WARRANTIES, INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR CONSUMER USE, ARE LIMITED TO THE DURATION SPECIFIED ABOVE. ROOT-LOWELL MANUFACTURING CO. 'S LIABILITY IS LIMITED SOLELY TO THE REPAIR OR REPLACEMENT OF THE NON-FUNCTIONING PRODUCT OR PART. EXCLUDES LIABILITY UNDER THIS WARRANTY FOR ANY AND ALL INCIDENTAL AND CONSEQUENTIAL LOSS OR DAMAGES. [. . . ]